DE19533153C2 - Sliding door with emergency opening or closing device - Google Patents

Description

The invention relates to a sliding door with an emergency opening or emergency closing direction according to the preamble of claim 1.

Such a construction is known from DE 92 00 342 U1. The emergency opening nungseinrichtung has a long coil spring with one end in a fixed bearing and with its other end in one on the carriage of the Sliding door mounted bearing is hooked. When the motor is actuated Sliding door, the spring is actuated with each so that it continues when closing stretched and tensioned and when opening up to the specified preload relaxed again. The spring is therefore always running, i.e. H. she has to the closing process.  

The drive motor must also be designed to be relatively strong, since it is with everyone Closing process has to overcome the spring force and keep it in the closed position got to.

In the magazine "TÜR + TOR-REPORT 15th year 1st quarter 1995 " an escape route sliding door drive is described, which for each door leaf requires an additional carriage with three rollers, which is coupled to a carriage by means of an electromagnet. A rail designed as an energy store is also attached to the carrier carriage and is also moved with the entire sliding door. The electromagnet that moves with every door movement requires a complex power supply, which is susceptible to faults due to the constant movement. The assigned to each drive carriage and designed as an energy storage rail requires a high construction cost with expensive components.

The invention has for its object an emergency opening or closing direction for a sliding door that is simple in construction, a high Be has drive safety and a drive motor with the lowest possible drive performance needed. It is also the task of the emergency opening or closing device device can be easily installed in an existing sliding door drive.

This object of the invention is achieved by the feature specified in claim 1 le solved.

Since the holding device is only a force accumulator in predetermined emergencies triggers the forming spring and only then brings it into operative connection with the door leaf, an emergency opening device is created that is simple in construction, high Has operational reliability and a low level for the usual door movements drive power of the drive motor requires.

Advantageous embodiments of the invention are given in the subclaims ben.  

In a further embodiment of the invention, the holding device is by a Electromagnet formed with the corresponding end of the coil spring is provided with an anchor. Here are except those with electromagnetic force acting holding devices also other known holding devices can be used easily.

According to a feature of the invention, the anchor is with a carrier carriage connected and interacts with a stop attached to the door leaf. On this ensures that the door leaf is carried very safely in emergencies, especially if, as a further feature of the invention shows, the driver Carriage is guided on a separate track.

To reduce the opening or closing force or to break the According to the invention, the energy accumulator with a connected to the energy content monitoring sensor device. This mistake can be indicated by an alarm signal, whereby the door leaves from the operator for example, be brought into the open position and no longer close.

As the invention shows, it is easily possible for the two door leaves each interact with a separate energy accumulator or only one door leaf cooperates with an energy store. Likewise, the two door panels can a drive belt or the like. Connected, it being provided that the drive belt has a steel strand or the like.

According to the energy accumulator is designed as a coil spring or it consists of a rubber rope. Especially if the rubber rope in one hand attached to a fixed clamping bracket and via a guide roller to the driver is guided, is a very cheap Fe due to the long rubber rope derkonstant obtained, so that a drive motor that only to open and Closing the door leaf is designed, without further ado only after installation  the emergency device or an accident, one-time take of the Carrier carriage to take hold of the magnet. At the This extremely rare occurrence of taking along the carriage can be done without further be accepted that only then the closing of the door gel is slower.

For retrofitting an existing sliding door drive with the Emergency device according to the invention, it is very advantageous if the guide roller is arranged obliquely, which ensures that the rubber rope on no component touches. For easy assembly and adjustment of the pulley is the se adjustable in its inclined position by means of a guide. A sol che adjustment is created in a simple manner that the leadership as Dovetail guide is formed.

A particularly inexpensive and easy to assemble embodiment of the Carrier carriage is obtained according to the invention in that the Carrier carriage two barrel arranged offset in the running direction to each other rolls and the energy accumulator is attached eccentrically to the carrier carriage is. Due to the eccentric attachment of the energy accumulator, a moment in ver tical and a moment in the horizontal direction on the drive carriage practiced. As a result, a play-free arrangement of the only two castor-provided driving carriages in the track fen.

In the event that the triggering of the emergency device, for example at half ge closed door panels, further features of the invention show that the Carriage carriage best one from a stop plate and a carrier plate has stop. The stop plate consists of an elastic The material and is by means of an adhesive connection on the carrier plate Stigt. In this way it is ensured that always an elastic component between between the roller carriage and the carrier carriage is effective. Also the  lateral guidance of the driver carriage is thereby easily ge create that this has a support disc, which in the running rail engages and consists of low-friction material, preferably plastic.

Based on the embodiments shown in the drawing is below the invention explained in more detail. It shows:

Figure 1 shows the schematic diagram of a sliding door drive with Notöffnungseinrich device.

Figure 2 shows an embodiment of an emergency opening device in a schematic representation.

Fig. 3 shows the deflection roller shown in Figure 2 in cross section.

Fig. 4 shows an embodiment of a driving carriage in plan view and

Fig. 5 shows the carrier carriage according to Fig. 4 in side view.

Fig. 1 shows an automatic sliding door system with two door leaves 1 and 2 , the right door leaf 1 is provided with the carriages 3 and 4 , while the left door leaf 2 carries the carriages 5 and 6 and these door leaves with their Laufwa conditions in a stationary horizontal track 16 are slidably guided. The door leaves 1 and 2 are driven via a toothed belt 7 , which is driven by a drive motor 8 and runs over a toothed belt deflection roller 9 . A driver 17 connected to the right door leaf 1 is fastened to the upper run of the toothed belt 7 , while a driver 18 located on the left door leaf 2 is connected to the lower run of the toothed belt 7 .

The emergency opening device has a helical spring 10 which is fastened on the one hand to a fixed bearing 11 and carries an armature 13 at its other end, with which it cooperates with a fixed electromagnet 12 . The ker 13 carries a carrier carriage 14 which is guided in the running rail 16 or in a separate fixed running rail and can act on a stop 15 attached to the right door leaf 1 . In addition, a steel cable 19 can be fastened to the drivers 17 and 18 and run parallel to the toothed belt 7 .

The coil spring 10 designed as a tension spring is in the usual door movements in a tensioned state and remains unchanged, ie unmoved. It is designed and preloaded so that it pulls the door wing with certainty in the open position in the event of an emergency. To detect the emergency situations to be taken into account, corresponding sensors are provided which act on the electromagnet 12 , for example by interrupting the current. Furthermore, the emergency situation always occurs in the event of a power failure. In the emergency situation, the armature 13 is released from the electromagnet 12 , so that the driving carriage 14 acts on the impact 15 on the door leaf 1 and on the toothed belt 7 and the steel cable 19 also on the door leaf 2 and pulls both door leaves into the open position. Thus, the steel cable 19 , which is connected via the drivers 17 and 18 with the Türflü gels 1 and 2 , ensures that even when the toothed belt 7 is broken, both door leaves are opened in an emergency.

If the damage or fault that has occurred is remedied, the coil spring 10 is tensioned with the first closing movement of the door leaf and the armature 13 is attracted and held by the electromagnet 12 , the stop 15 bringing the driver carriage 14 and thus the armature 13 into the tensioned spring position ,

Instead of the steel cable 19, it can also be provided that both door leaves are each provided with a spring 10 and the springs interact with electromagnets. Furthermore, two-leaf designs are also possible, in which only one door leaf is provided with a spring 10 and in which, however, a steel cable 19 or other securing of the drive belt 7 is not present. If the drive belt 7 breaks, only one door wing opens.

In further embodiments, the spring balancer 10 can be monitored with a sensor device and z. B. in the event of failure of the spring preload or Fe derbruch that the system runs in the open position and switches off if necessary or that an alarm signal is given.

The sliding door drive in Fig. 2 has a particularly easy retrofittable emergency opening device. The emergency opening device acts on the door leaves 1 and 2 , whereby this device can of course also be used with single-leaf sliding door systems. The emergency opening device consists of a rubber cord 20 made of energy accumulator, a clamping bracket 21 and a deflection roller 22 , both of which are arranged in a fixed position, a carrier carriage 14 and a most electromagnet 12 . The drive not shown because of the better clarity corresponds essentially to that shown in Fig. 1. The gum miseil 20 is clamped at one end in the clamping bracket 21 and guided over the deflection roller 22 to the drive carriage 14 and clamped there with the other end. As a result, the rubber rope can be made very long and therefore has a favorable spring constant. The driver carriage 14 runs in the same rail 16 in which the roller carriages 29 and 30 on which the door leaves 1 and 2 are fastened also run. The right end face of the trolley 30 forms a stop surface for the driving carriage 14 , as a result of which the trolley 30 is brought into the holding position on the electromagnet 12 after an accident or when the door leaf is first closed after the emergency opening device has been installed. The rubber cord is only pretensioned so strongly during installation that it can safely pull door leaves 1 and 2 into the open position. Too high a bias would require an unnecessarily large clamping force in order to bring the carrier carriage 14 into the holding position on the electromagnet. In the event of a power failure or other emergency situations, the electromagnet 12 releases the drive carriage 14 so that it comes to rest on the right end of the trolley 30 and pulls the door leaves 1 and 2 into the open position. After the elimination of an accident, when the door leaves 1 and 2 are first closed, the carrier carriage 14 is brought back from the trolley 30 into its holding position on the electromagnet 12 . As a result of the favorable spring constant of the rubber rope 20 , a relatively weak drive motor can also easily bring the slave carriage 14 against the spring force of the rubber rope 20 into the holding position on the electromagnet 12 after a malfunction. Since the driver carriage 14 is arranged in the same rail 16 as the door wings carry the trolleys 29 and 30 retrofitting an existing automatic sliding door system with the above-described emergency opening device without changing the existing door system, that is, even without a stronger drive motor possible.

Fig. 3 shows the pulley 22 for the rubber rope 20 , the supply angle with a fastening bracket 26 is fixedly attached. With this mounting bracket 26 , a receptacle 25 is connected, said receptacle 25 having a dovetail guide 23 , in which a complementary insertion nut 24 engages. On a two-part hub 27 with the parts 27 a and 27 b, the guide roller 22 is gela gert, while a fastening screw 28 connects the hub 27 to the insert nut 24 and at the same time the insert nut 24 in the dovetail guide 23 fixed in the desired position. Here, the screw 28 acts on the Na part 27 a, which thus presses the hub part 27 b in a clamped connection onto the outer surface of the dovetail guide 23 . The dovetail guide 23 is arranged obliquely with respect to the vertical, as a result of which the deflecting roller 22 is inclined and thereby precise guidance of the rubber cable 20 is made possible. A streak of the rubber rope 20 on a component can be avoided without difficulty due to the easy adjustability of the deflection roller 22 in the dovetail guide 23 . Instead of the dovetail guide, other known adjustment systems, such as adjustment screws for height and inclination adjustment, are possible for the deflection roller 22 .

FIGS. 4 and 5 show the Mitnehmerlaufwagen 14 as a detail. The axes of an upper roller 32 and a lower roller 33 are fastened on a fastening plate 31 . A with the mounting plate 31 clamping bracket 34 carries a support plate 36 , a support plate 37 and a stop plate 38 , these parts being fastened by means of spacing and fastening elements 39 at a distance on the clamping angle. In this intermediate space thus formed there is a clamping disc 35 , which can be seen with two clamping screws 41 and is used for clamping the rubber cable 20 at the clamping point 40 . The rubber cable 20 is clamped eccentrically on the carrier carriage 14 , as a result of which a moment acting vertically and horizontally is exerted thereon. As a result of the spring force of the rubber rope 20 , it is achieved that the two rollers 32 and 33 , which are offset in the running direction from one another, are pressed firmly against the running rail and are thus guided without play, that is to say, even when retrofitted into an existing sliding door system, the driving carriage 14 works without tolerance problems , The anchor plate 13 fastened to the driver carriage 14 is angularly movable by means of an O-ring 42 and serves to hold the driver carriage on the electromagnet 12 . On the other hand, the stop plate 38 consisting of an elastic material is glued onto the carrier plate 37 , while the support disk 36 consists of a plastic with favorable sliding properties and serves in the running rail 16 for lateral support of the driving carriage.

Claims (18)

1. Sliding door with an emergency opening or emergency closing device, at least one door wing driven via a drive motor being provided and a force accumulator engaging on the one hand on the door wing and on the other hand on a stationary bearing, which is provided in the event of failure of the drive motor or of a transmission existing between the drive motor and door wing partly brings the door leaf into the open or closed position, characterized in that the one acting on a stationary bearing and preferably consisting of a spring Kraftspei cher, with its other end can also be connected in normal operation with the most stationary holding device, which at Failure of the drive motor or a transmission part or triggering in the event of a power failure and acting on the door leaf ( 1 , 2 ). 2. Sliding door according to claim 1, characterized in that the holding device is formed by a preferably fixed electromagnet ( 12 ) and the corresponding end of the energy accumulator is provided with an armature ( 13 ). 3. Sliding door according to claim 2, characterized in that the armature ( 13 ) is connected to a driving carriage ( 14 ) which cooperates with egg nem on the door leaf ( 1 ) attached stop ( 15 ). 4. Sliding door according to claim 3, characterized in that the driving carriage ( 14 ) is guided on a preferably fixed running rail ( 16 ), on which the door leaf ( 1 , 2 ) is guided and / or guided on a separate, preferably stationary running rail is. 5. Sliding door according to one of the preceding claims, characterized ge indicates that the energy storage with the energy content monitoring sensor device is connected. 6. sliding door with two door leaves according to one of the preceding claims, characterized in that both door leaves each with one separate energy accumulator interact or only one door wing with one Lift mechanism interacts. 7. Sliding door according to claim 6, characterized in that the two door leaves ( 1 , 2 ) via a drive belt (toothed belt 7 ) or the like. A related party and is preferably provided that the drive belt has a steel strand ( 19 ) or the like. 8. Sliding door according to one of claims 1 to 7, characterized in that the energy accumulator is designed as a coil spring ( 10 ). 9. Sliding door according to one of claims 1 to 8, characterized in that the energy accumulator is designed as a rubber rope ( 20 ). 10. Sliding door according to claim 9, characterized in that the rubber cable ( 20 ) on the one hand in a fixed bearing preferably clamp angle ( 21 ) attached and via a guide roller le ( 22 ) is guided to the carrier carriage ( 14 ). 11. Sliding door according to claim 10, characterized in that the deflecting roller ( 22 ) is arranged obliquely. 12. Sliding door according to claim 11, characterized in that the deflection roller ( 22 ) is arranged adjustable in its inclined position by means of a guide. 13. Sliding door according to claim 12, characterized in that the guide is designed as a dovetail guide ( 23 ). 14. Sliding door according to one of claims 3-13, characterized in that the Mitnehmerlaufwa gene ( 14 ) has two mutually offset in the direction of running rollers ( 32 and 33 ) and the energy accumulator (coil spring 10 , rubber rope 20 ) eccentrically on the driver carriage ( 14 ) is attached. 15. Sliding door according to one of claims 3 to 14, characterized in that the driving carriage ( 14 ) has a stop consisting of a stop plate ( 38 ) and a support plate ( 37 ). 16. Sliding door according to claim 15, characterized in that the stop plate ( 38 ) consists of an elastic material and is fastened by means of an adhesive connection on the carrier plate ( 37 ). 17. Sliding door according to one of claims 4 to 16, characterized in that the driving carriage ( 14 ) has a support disc ( 36 ) which engages in the running rail ( 16 ). 18. Sliding door according to claim 17, characterized in that the support disc ( 36 ) consists of a low-friction material, preferably made of plastic.